#include<iostream>
#include<unistd.h>
#include<pthread.h>

int cnt = 0;

pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; 
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;

void *Count(void* args)
{
   pthread_detach(pthread_self()); 
   uint64_t number = (uint64_t)args;
   std::cout << "pthread: " << number << "create success" << std::endl; 

   while(true)
   {
       pthread_mutex_lock(&mutex);
       pthread_cond_wait(&cond, &mutex); 
       std::cout << "pthread: " << number << " , cnt: " << cnt++ << std::endl; 
       pthread_mutex_unlock(&mutex); 
   }
}

int main()
{
    for(uint64_t i = 0; i < 5; i++)
    {
        pthread_t tid;
        pthread_create(&tid, nullptr, Count, (void*)i);
        usleep(1000); 
    }
    sleep(3);
    std::cout << "main thread ctrl begin: " << std::endl; 
    while(true)
    {
        sleep(1);
        //pthread_cond_signal(&cond); //唤醒cond的等待队列中等待的一个线程，默认都是第一个
        pthread_cond_broadcast(&cond); 
        std::cout << "signal one thread ... " << std::endl; 
    }
    return 0;
}
